The S&P 500 was down 0.2% in midday trading to 2,087.22.
The Dow Jones Industrial Average was flat at 17,997.10.
The NASDAQ was down 1.1% to 4,836.84.
The yield on a 10-year Treasury bond was down 2% to 1.89%.
The price of gold was up 0.6% to $1,251.
Irvine-based Opus Bank was up 5% to $36.61 and a $1.2 billion market cap. The bank holding company joined the S&P SmallCap 600 Index today and by midday had traded shares at a rate six times its 90-day average.
Irvine-based Endologix Inc. was up 4% to $11.75 and a $971 million market cap. The maker of devices to treat abdominal aortic aneurysms presented positive clinical data for an aneurysm sealing system it is developing.
Costa Mesa-based El Pollo Loco Holdings Inc. was down 8.4% to $13.66 and a $523 million market cap. SunTrust Robinson Humphrey downgraded the fast food chain’s shares to “neutral” from “buy” with a price target of $15. It cited El Pollo Loco’s missed 2015 growth targets, a current fast food focus on discounting and “value” pricing, and a coming increase in the minimum wage in California, where El Pollo Loco has most of its restaurants.
Newport Beach-based American Vanguard Corp. was up 2.3% to $16.37 and a $478 million market cap. A wholly owned unit of the chemicals maker established an Asia-Pacific division based in Singapore to pursue expansion in the region.